Bank transactions: Split transactions between accounts

It would be good to be able to dissect bank transactions to multiple accounts manually (not using a rule) e.g. insurance where part of the amount is GST free and part includes GST but not a set amount that can be entered into an allocation rule

As mentioned by @Docca61 this feature has been implemented with the New Banking Experience. This feature allows for the user to split a bank transaction to allocate to multiple accounts by an amount or a percentage.